/*public class Test {
    //面试问题：不能做switch的参数的数据类型是哪些？ long  float  double  boolean
    public static void main2(String[] args) {
        String a = "hello";
        switch (a) {
            case "hello":
                System.out.println(2);
                break;
            case "hello1":
                System.out.println(1);
                break;
            default:
                System.out.println("fsfsadsaf");
                break;
        }
    }
    public static void main1(String[] args) {
        System.out.println("\\\"hello\\\"");
        //System.out.println("\\"  hello \\"");
        // System.out.println(hello);
        //System.out.println("\\hello\\");

        *//*short a = 128;//0000 0000 1000 0000

        byte b = (byte) a;//-128   1000 0000
        System.out.println(b);

        int a = 10;
        System.out.println(!a);*//*


    }
}
}*/
